1. 1) Ohara, T., Morino, Y. and Tanaka, A., Atmospheric behavior of radioactive materials from Fukushima Daiichi Nuclear Power Plant, Journal of the National Institute of Public Health, 60, 292–2990 (2011)
2. 2) Saito, K., Tanihata, I., Fujiwara, M., Saito, T., et al., Detailed deposition density maps constructed by large-scale soil sampling for gamma-ray emitting radioactive nuclides from the Fukushima Dai-ichi Nuclear Power Plant accident, J. Environ. Radioact., 139, 308–319 (2015)
3. 3) Sato, I., Matsusaka, N., Tsuda, S., Kobayashi, H., et al., Relationship between turnover of cesium-137 and dietary potassium content in potassium-restricted mice, J. Radiat. Res. (Tokyo), 148, 98–100 (1997)
4. 4) Sato, I., Sasaki, J., Satoh, H., Murata, T., et al., Radioactive cesium and potassium in cattle living in the ‘zone in preparation for the lifting of the evacuation order’ of the Fukushima nuclear accident, Anim. Sci. J., 88, 1021–1026 (2017)
5. 5) Ministry of Agriculture, Forestry and Fisheries, Basic knowledge of radioactive substances, Ministry of Agriculture, Forestry and Fisheries, Tokyo; [cited November 2011]. Available from URL: http://www.maff.go.jp/j/syouan/soumu/saigai/pdf/1_kiso.pdf, (2011)